いろんなフォントで「main diagonal」変換
Zen Old Minchomain diagonal
Yusei Magicmain diagonal
M PLUS 1main diagonal
Shippori Antiquemain diagonal
Yuji Maimain diagonal
Dela Gothic Onemain diagonal
DotGothic16main diagonal
Train Onemain diagonal
Hira Minchomain diagonal
Potta Onemain diagonal
Reggae Onemain diagonal
Stickmain diagonal
Zen Kurenaidomain diagonal
Kosugi Marumain diagonal
Rampart Onemain diagonal
Hachi Maru Popmain diagonal
New Tegominmain diagonal
RocknRoll Onemain diagonal
Kaisei Decolmain diagonal
「main diagonal」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
